1 /* $OpenBSD: signal.h,v 1.15 2011/07/06 17:39:22 guenther Exp $ */ 2 /* $NetBSD: signal.h,v 1.8 1996/02/29 00:04:57 jtc Exp $ */ 3 4 /*- 5 * Copyright (c) 1991, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)signal.h 8.3 (Berkeley) 3/30/94 33 */ 34 35 #ifndef _USER_SIGNAL_H 36 #define _USER_SIGNAL_H 37 38 #include <sys/cdefs.h> 39 #include <sys/signal.h> 40 41 #if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE 42 #include <sys/types.h> 43 #endif 44 45 __BEGIN_DECLS 46 #if __BSD_VISIBLE 47 extern __const char *__const sys_signame[_NSIG]; 48 extern __const char *__const sys_siglist[_NSIG]; 49 #endif 50 51 int raise(int); 52 #if __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE 53 void (*bsd_signal(int, void (*)(int)))(int); 54 int kill(pid_t, int); 55 int sigaction(int, const struct sigaction *, struct sigaction *); 56 int sigaddset(sigset_t *, int); 57 int sigdelset(sigset_t *, int); 58 int sigemptyset(sigset_t *); 59 int sigfillset(sigset_t *); 60 int sigismember(const sigset_t *, int); 61 int sigpending(sigset_t *); 62 int sigprocmask(int, const sigset_t *, sigset_t *); 63 int sigsuspend(const sigset_t *); 64 65 #if !defined(_ANSI_LIBRARY) && !defined(lint) 66 67 __only_inline int sigaddset(sigset_t *set, int signo) { 68 int *__errno(void); 69 70 if (signo <= 0 || signo >= _NSIG) { 71 *__errno() = 22; /* EINVAL */ 72 return -1; 73 } 74 *set |= (1U << ((signo)-1)); /* sigmask(signo) */ 75 return (0); 76 } 77 78 __only_inline int sigdelset(sigset_t *set, int signo) { 79 int *__errno(void); 80 81 if (signo <= 0 || signo >= _NSIG) { 82 *__errno() = 22; /* EINVAL */ 83 return -1; 84 } 85 *set &= ~(1U << ((signo)-1)); /* sigmask(signo) */ 86 return (0); 87 } 88 89 __only_inline int sigismember(const sigset_t *set, int signo) { 90 int *__errno(void); 91 92 if (signo <= 0 || signo >= _NSIG) { 93 *__errno() = 22; /* EINVAL */ 94 return -1; 95 } 96 return ((*set & (1U << ((signo)-1))) != 0); 97 } 98 #endif /* !_ANSI_LIBRARY && !lint */ 99 100 /* List definitions after function declarations, or Reiser cpp gets upset. */ 101 #define sigemptyset(set) (*(set) = 0, 0) 102 #define sigfillset(set) (*(set) = ~(sigset_t)0, 0) 103 104 #if __BSD_VISIBLE || __XPG_VISIBLE >= 420 105 int killpg(pid_t, int); 106 int siginterrupt(int, int); 107 int sigpause(int); 108 int sigreturn(struct sigcontext *); 109 int sigstack(const struct sigstack *, struct sigstack *); 110 int sigaltstack(const struct sigaltstack *, struct sigaltstack *); 111 #if __BSD_VISIBLE 112 void psignal(unsigned int, const char *); 113 int sigblock(int); 114 int sigsetmask(int); 115 int sigvec(int, struct sigvec *, struct sigvec *); 116 #endif 117 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 199309 || __XPG_VISIBLE >= 500 118 int sigwait(const sigset_t *, int *); 119 #endif 120 #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */ 121 #endif /* __BSD_VISIBLE || __POSIX_VISIBLE || __XPG_VISIBLE */ 122 __END_DECLS 123 124 #endif /* !_USER_SIGNAL_H */ 125